By means of ketamine anesthesia and sacral canal anesthesia, the urethra at the narrow site was dilated with urethreurynter, and then the memory alloy stent was placed.

• 合金支架管在术后3个月取出。结果:本组治愈17例；治愈率83%25(17/18).；3个月内金属支架管脱落1例；再次出现尿道狭窄。